Methods The relative quality of dust deposited in pulmonary intersititum of silicotic rats was evaluated by using polarizing microscopy and image assay system. 方法采用偏振光显微技术和图像分析系统,评价染尘大鼠肺组织滞留粉尘的相对量。
The thermal expansion coefficient of fluosilicate glass-ceramics is mainly affected by the crystal phases and their amount. 氟硅酸盐微晶玻璃的热膨胀性能主要取决于微晶玻璃的晶相组成及其相对含量。
The costs of reducing hardness depend on the relative amounts of calcium and magnesium compounds that are present. 降低硬度的成本取决于钙及镁化合物的相对含量。